I got them apart - and used russlaferrera's suggestion. The cost was $2.97 for 2 HD 2.250clamps, two scrap pieces of 1.5x .125 angle iron, two 8" pieces of .4375 all thread, some nuts, and a little welding. It was all bolted up, the joint sprayed with WD-40, a couple of scrap pieces of steel against the mufflers to prevent damage and Voila', off they came. The left side was a bear to come apart, the right was easy. Now the fun
of building the 'H' pipe !!